Shuttle tension.



H. W. OWEN. snume TENSION. APPLICATION FILIED JUNE 30. 1911.

Patented Nov. 5, 1918.

HERBERT W. OWEN, OF LEWISTON, MAINE, ASSIGNOIB, T0 DRAPER CORPORATION, OF HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.

SHUTTLE TENSION Specification of Letters Patent.

I a/tented new, 5, mm.

To all whom, it may concern.

Be it known that I, HERBERT W. OWEN, a citizen of the United States, residing at Lewiston, county of Androscoggin, and State of Maine, have invented an Improvement in Shuttle Tensions, of which the following description, in connection With the accompanying drawings, is a specification, like characters on the drawings representing like parts.

The invention to be hereinafter described relates to loom shuttles, and-more particularly to tension devices employed in such shuttles to act upon the filling or weft.

During the weaving operation, the filling is rapidly drawn from the filling carrier as the shuttle is picked from one shuttle-box to the other and is liable to overrun, particularly when the shuttle is suddenly arrested in the shuttle-box. In consequence of this, the filling may become snarled or kinked which at times may cause breakage, or in case of self-threading shuttles employed in filling replenishing looms, such condition of the filling may cause the shuttle to become unthreaded. These undesirable conditions are emphasized where the filling is coarse or heavy, and whenever they occur they may either cause loom stoppage or an unnecessary operation of the replenishing mechanism with resulting waste and cost of production.

An important feature of the present invention therefore, consists of a tension de- Vice bearing directly upon the mass of filling in the shuttle and extending longitudinally of the filling mass at the side thereof in non-intersecting relation with the aXis of the filling carrier. This characteristic of the invention, while rendering the tension device effective in preventing over-running of the filling in any type of shuttle,

renders it particularly advantageous in a shuttle where the filling is to be replenished from time totime by the automatic insertion and ejection of filling carriers, because While acting upon the body of the filling in the shuttle, it does not interfere with the automatic ejection of a filling carrier.

Shuttles which are to be automatically replenished with filling usually have an en larged base to engage the holding means in the shuttle. It is, therefore, important that the longitudinally-extending tension device shall not impede the passage of the enlarged the old filling carrier is ejected.

' diverge from a point near the tip of the fill mg carrier toward the base and each of which bear upon the .mass of filling at one side of the axis of the carrier, So that the carrier may be readily ejected.

Other objects and features of the invention in addition to those stated, will be hereinafter described in connection with the accompanying drawing which shows certain forms of the invention well adapted to carry it into practical effect. and then the various features of the invention will be set forth in the claims.

In the drawings Figure l is a plan view of a shuttle provided with a tension device embodying the present invention;

Fig. 2 is a bottom plan View of the shuttle shown by Fig. 1;

Fig. 3 is a partial longitudinal section of. the-shuttle shown by Fig. 1, parts being omitted, and including a fragmentary sectional portion illustrating the manner of securing one end of the tension device to the shuttle-body;

Fig. 4 is a plan View of a shuttle containing'a modified form of the invention, the

lling carrier being omitted, and some of the parts being broken away;

Fig. 5 is a perspective view looking at the .bottom portion of a shuttle containing a modified form of the invention; and

Fig. 6 is a detached detail showing the tension regulating device employed in the modified construction shown by Fig. 5.

eferring more particularly to Figs. 1, 2 and 3: The shuttle l is illustrated as of the filling replenishing type, having an opening 2 in its top and an opening 3 in its bottom for the purpose of inserting and eject ing a filling carrier in a manner well understood by those skilled in the art. The shuttle body has secured thereto the guide 4 for directing the filling carrier into proper holding relation with the holding means for the filling carrier, which, in the present instance of the invention, comprises thejaws 5, 5.

Shuttles of the character illustrated are usually provided with a self-threading device which itomatically effects the threading of the filling into the shuttle eye when the shuttle ispicked after a replenishing operation. In the present instance, the threading device consists of a block 6 of usual construction, and having a projecting stud 7 which enters a-recess 8 in the shuttle The'filling carrier 10 may be of any a ppropriate character, and as illustrated in the present instance of the invention, comprises a bobbin having an enlarged-base portion 11 provided with the jaw-engaging rings 12 to be received by the usual bin-holding jaws 5. The construction so far described may be of any approved character,

'such that when the shuttle is to be reple'nished by a change of filling carriers, the old filling carrier may be forced through the bottom opening 3 of the shuttle as the new filling carrier is inserted into the shuttle.

In order that the filling shall not balloon or become snarled, or kinked, during the weaving operation, it is desirable that a too free delivery of the filling from the filling carrier may be prevented, especially when the shuttle comes to rest in the shuttle-box after its flight across the lay. To this end the present invention contemplates a tension device extending longitudinally of the shuttle, which shall engage the body of the filling at one si deof .tlie.. 1on.g l 21Xi$ 0f the filling carrier and not interfere wlth the ejection of the filling carrier when replenishshuttle body ble member 13 having ment of filling is to be effected.

In the form of the invention illustrated by Fig. 1, the tension device consists of a flexithe leg portions 14, one arranged at either side of the longitudinal axis of the filling carrier, the construction being such that when the filling carrier is to be ejected from the shuttle it may readily pass between the legs 14 of the flexible member 13. In the illustrated form of the invention, the legs 14 of the tension-device may be formed by splitting or bifurcating the flexible member 13, one end of the flexible member-13 being secured to the shuttle body adj acent the tip end of the filling carrier and the ends-of the leg portions 14 being secured adjacent the base portion of the filling carrier, said leg portions-14 diverging from a point adjacent the tip of, the bobbin toward the base of the filling carrier, substantially as illustrated in Figs. 1 and 2. The flexible member 13 may be secured to the by any appropriate means, but as shown in the illustrated form of the ingrooves in the bobvention, the stud or pin 7 of the threading block is passed through the end portion 15 of the flexible member 13, and the ends of the legs 14 are secured to the shuttle body adjacent the base portion of the bobbin or filling carrier. This may be effected in various ways, and as illustrated, the shuttle body is provided with an opening 16, one at either side of the shuttle body adjacent the base of the bobbin, and the ends of the legs 14 respectively, are inserted in such openings where they may be secured by a plug of wood or similar material, 17.

From the construction described, it will be apparent that the legs of the tension device are more widely separated adjacent the base portion of the bobbin or filling carrier to permit ejection of the filling carrier or bobbin when the shuttle is to be replenished with filling, and that said legs converge until they meet adjacent or slightly beyond the tip portion of the bobbin at 18. the construction being such that as the filling carrier or bobbin is pushed downwardly to .be ejected from the shuttle, the base portion thereof will readily pass between the widely separated legs 14, and the tip portion 19 of the filling carrier or bobbin will pass downwardly between the more contracted opening between the legs 14, the flexible or yielding character of the tension device yielding sufficiently at such time to permit the tip end 19 of the fillin carrier or bobbin to pass between the legs of the tension device.

Since the filling is wound upon the filling carrier or bobbin-by what is technically known-asthe filling wind, it is drawn from 'thefilling carrier or bobbin in conical layers from the end thereof. It is therefore desirable that the legs 14 of the tension device converge toward the tip end of the bobbin or filling carrier and in order to secure a more effective contact between the legs of the tension device and the cone portion of the filling carrier near the tip thereof, it may be desirable, in some instances, to secure the tension device to the shuttle body adjacent the tip portion of the bobbin or filling carrier at a point nearer the longitudinal axis of the filling carrier than the ends of the legs 14 are secured to the shuttle body. This is effected in the present instance of the invenv the filling at each side of the lid able substance; but in addition to the yielding character inherent in the tension device itself, it may be desirable at times to provide a further yielding characteristic to the tension device. This is effected in the modification illustrated in Fig. 4: by securing the legs 14 to the shuttle body by means of the springs 21. One end, of a spring 21 may be secured to one end of a leg 14, and the other end to the shuttle body by suitable means such as a pin 22, the particulars in this respect being susceptible of variation.

In the modification of the invention as illustrated by Fig. 5, means are provided for adjusting the action of the tension device to suit the conditions of use.

variously effected, but in the trated in Fig.

instance illuspin 23 shuttle as indicated in Fig. 5. The pin 23 may be provided with a slotted head 24:, by which it may be rotated to adjust the effecupon the mass or body of filling in the shuttle; and when it has been rotated to the desired extent, it may be secured in such adjusted position'by suitable means such, for instance, as the set screw 25.

The ends of the legs 14 may be secured to the adjusting device 23 in various ways, but

as illustrated in Fig. 6, the rotatable pin 23 is provided with openings 26 in which the ends of the legs 14 of the tension device are inserted and secured.

What is claimed is 1- 1. A loom shuttle having means for detachably holding a filling carrier and provided with an opening in its walls for the passage of the fillin carrier therethrough, and a tension device llaving two leg portions extending longitudinally of the shuttle, one at each side of the axis of the filling carrier to bear upon the filling and permit ejection of the filling carrier from the shuttle by passing between the legs of the tension device.

2. A loom shuttle adapted to hold a filling carrier and permit it to be bodily ejected therefrom, and a tension device having longitudinally-extending members axis of the filling carrier and converging from one end of the filling carrier toward the other that the filling carrier may pass between the two members as it is ejected from the shuttle.

3. A loom shuttle provided with jaws for detachably holdin a filling carrier and having ,an opening through opposite walls for the introduction and ejection of the carrier, a tension device having a leg portion extending longitudinally of theshuttle at one side of the axis of the filling carrier to bear upon the body of the filling on the carrier. and means for securing the ends of the ten- This may be the insertion and I provided with a 5, the legs let ofthe tension device are secured to a rotatable 20 1 point to bear upon.

the tension device may bear upon the mass of filling and yet permit the filling carrier to be readily ejected bodily from the shuttle.

5. A loom shuttle in which the filling is adapted to be automatically replenished by ejection of a filling carrier, tension device havingone end secured near thebase of the filling carnor in the shuttle and'the other endsecured .to the shuttle body near the tip and nearer the axis of the filling carrier that the tension device may bear upon the mass of filling in the shuttle and permit the filling car-. rier to be readily ejected, and yielding means acting to hold the tension device against the mass of filling.

6. A loom shuttle in which the fillin is adapted to be automatically replenishecFby the insertion and ejection of a filling carrier, provided with a yielding tension device having leg portions diverging from a. near the tip of the filling carrier in the shuttle toward the base of the filling carrier, said leg portions adapted to bear upon the mass of filling at each'side of the longitudinal axis of the filling carrier and permitting the filling carrier to pass between the leg portions when it is ejected.

7. A loom shuttlehaving means for detachably holding a filling carrier and provided with an opening in its walls for the passage of the filling carrier therethrough,

a tension devicehaving two leg portions 1w extending longitudinally of the shuttle, one

at each side of the axis of the filling carrier to bear upon the filling and permit ejection of the filling carrier from the shuttle by passing between the legs of device, and means for adjusting the action of the tension device.

8. In a loom shuttle, the combination of a shuttle body having an opening for the reception of a filling carrier, and a tension we device having leg portions extending diagonally from one end of the filling carrier receiving. opening of the shuttle to the other, the distance between the legs of the tension device adjacent the base of the filling carmay rier in the shuttle being greater than the distance between the legs of the tension device adjacent the tip end of the filling carrier.

9. In a loom shuttle, the combination of a mo Ali llOtl the tension 111a shuttle body having an opening for the reception of a filling carrier, a tension device having leg portions extending diagonally from one end of the filling carrier receiving opening of the shuttle to the other, the distance between the legs of the tension device adjacent the base of the filling carrier in the shuttle being greater than the distance between the legs of the tension device adjacent the tip end of the filling carrier, and yielding means acting longitudinally of the tension device to hold the legs of the tension device against the mass of yarn in the shuttle.

10. In a loom shuttle, the combination with a shuttle body having a filling carrier' receiving opening, of a tension device having leg portions formed of flexible material and extending longitudinally of the receiving opening each to bear upon the mass of filling at one side of the axis of the filling carrier, that the filling carrier may pass between the leg portions, and means for securing the. ends of the tension device at opposite end portions of the receiving opening.

11. A tension device for loom shuttles, comprising. in combination, a strip of fieXible material having diverging leg portions adapted to bear upon the filling in a shuttle at opposite sides of the axis of the filling carrier, and means for securing one end portion 01": the tension device yieldingly to the body of the shuttle.

12. A loom shuttle adapted to hold a filling carrier and permit it to be bodily ejected therefrom, and a tension device extending longitudinally of the shuttle to bear upon the mass of filling at one side of the longitudinal axis of the filling carrier or bobbin that the filling carrier or bobbin may pass the tension device when the carrier or bob bin is bodily ejected from the shuttle.

13. In a loom shuttle, the combination with a shuttle body having a filling carrier receiving opening, and an ejecting opening, of a tension device extending longitudinally of the shuttle to bear upon the mass of filling in the shuttle, and means for securing the tension device to the shuttle body with the end adjacent the tip of the filling carrier nearer the longitudinal axis of the filling carrier than the end adjacent the base of the filling carrier that the tension device may bear upon the filling at. one side of the longitudinal axis of the carrier or bobbin and permit the carrier or bobbin to pass when ejected from the shuttle.

let. A loom shuttle provided with an opening in its walls for the passage therethrough of a filling carrier or bobbin, and a tension device extending longitudinally of the shuttle to bear upon the filling at each side of the axis of the filling carrier or bobbin and permit the passage of the filling carrier, and means for securing opposite ends of the tension device to the shuttle.

In testimony whereof, I have signed my name to this specification.

HERBERT IV. OWEN. 

